Love that unites and that divides

One of the lovely things said by Jeremy Wilkins was about how Christ's love both united him and divided him from people. It obviously united him to them, which is not too difficult to understand. But how did it divide him? Because, said Jeremy, his love was so pure that he was pained by the smallness of those around him. But it was a sorrow 'untainted by malice.' What a lovely expression. I remember it being said of Cimatti, Salesian Apostle of Japan, that he too was pained by the imperfections of his confreres. Bernanos, it seems, said the same thing of Mary: what isolation she must have suffered because of the purity of her love.